From c9998ac0e20aeec490f51362ec781e70e1ef3d16 Mon Sep 17 00:00:00 2001
From: Martin Pycko <martinp@digium.com>
Date: Thu, 14 Aug 2003 20:44:30 +0000
Subject: [PATCH] Fix the potential segfault

git-svn-id: https://origsvn.digium.com/svn/asterisk/trunk@1330 65c4cc65-6c06-0410-ace0-fbb531ad65f3
---
 channels/chan_zap.c | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/channels/chan_zap.c b/channels/chan_zap.c
index c09d550cf8..fe490c5d7f 100755
--- a/channels/chan_zap.c
+++ b/channels/chan_zap.c
@@ -2572,8 +2572,10 @@ static struct ast_frame *zt_handle_event(struct ast_channel *ast)
 		case ZT_EVENT_ALARM:
 #ifdef ZAPATA_PRI
 #ifdef PRI_DESTROYCALL
-			if (p->call && p->pri->pri)
+			if (p->call && p->pri && p->pri->pri)
 				pri_destroycall(p->pri->pri, p->call);
+			else
+				ast_log(LOG_WARNING, "The PRI Call have not been destroyed\n");
 			p->call = NULL;
 #else
 #error Please "cvs update" and recompile libpri
-- 
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